okay, i am trying to help out my brother here. for christmas, he got a whole bunch of cacti for a 15 gallon tank and he wanted to know if there was any kind of lizard he could put in there. he was thinking about a skink but i thought those guys got big. please dont say an anole because a couple of months ago he wanted one and i researched a lot for him and then he told me he thought they were boring in the pet store. thanks